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Gregory E Simon Center for Health Studies, Group Health
Cooperative, Seattle, WA 98101, USA
Correspondence to: G Simon simon.g{at}ghc.org
Objective:
To test the effectiveness of two programmes to improve the treatment of acute depression in primary care.
Design:
Randomised trial.
Setting:
Primary care clinics in Seattle.
Patients:
613 patients starting antidepressant treatment.
Intervention:
Patients were randomly assigned to
continued usual care or one of two interventions: feedback only and
feedback plus care management. Feedback only comprised feedback and
algorithm based recommendations to doctors on the basis of data from
computerised records of pharmacy and visits. Feedback plus care
management included systematic follow up by telephone, sophisticated
treatment recommendations, and practice support by a care manager.
Main outcome measures:
Blinded interviews by telephone
3 and 6 months after the initial prescription included a 20 item
depression scale from the Hopkins symptom checklist and the structured
clinical interview for the current DSM-IV depression module. Visits,
antidepressant prescriptions, and overall use of health care were
assessed from computerised records.
Results:
Compared with usual care, feedback only had no significant effect on treatment received or patient outcomes. Patients receiving feedback plus care management had a higher probability of both receiving at least moderate doses of
antidepressants (odds ratio 1.99, 95% confidence interval 1.23 to
3.22) and a 50% improvement in depression scores on the symptom
checklist (2.22, 1.31 to 3.75), lower mean depression scores on the
symptom checklist at follow up, and a lower probability of major
depression at follow up (0.46, 0.24 to 0.86). The incremental cost of
feedback plus care management was about $80 (£50) per patient.
Conclusions:
Monitoring and feedback to doctors
yielded no significant benefits for patients in primary care starting antidepressant treatment. A programme of systematic follow up and care
management by telephone, however, significantly improved outcomes at
modest cost.
© BMJ 2000
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